My car's alternator was replaced last year jan 2007. new battery as well...in the last week or so car not holding charge at all.if charged overnite, will last one to two days. does my car have a voltage regulator ? could this be the problem and if so where is it located?
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Re: loss of charge on 91 loyale station wagon
The regulator is in the alternator. it sounds like it isn't charging the battery anymore. battery voltage should be around 14 volts with engine running. also check connections at alternator to battery. have seen corrosion here keep the battery from charging
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you have a faulty alternator by the sounds of it, try this simple test, : test the voltage of the battery with the vehicle off with a simple multimeter, it should read just over 12v then test it with the car running, it should read around 14-14.5 volts if it still only reads 12v then your alternator needs replacing.
Could be a combination of things, they put in new battery but did they test charging system (Alternator) Your alternator might not be charging properly and you've been running on battery power. You've probably run the battery down so low that there's not enough power to run ignition but enough for lights etc. Jump start and bring to repair shop that you frequent and have them test your charging system.
Do you keep the key in your pocket quite a bit? Most BMW's need the key to be recharged in the ignition console for a few hours every week or so. The battery will die if you don't charge it for about an hour or two once a week.
This is an easy job, the alternator is located on the top of the motor, remove the neg battery terminal, next is to remove the belt covers on top then remove the top and bottom bolts to alternator, then flip alternator up and dissconect wires to alternator and remove it, reverse instrucation to install.
I would look at the alternator. I had a grand am that would do that to me, even with a brand new battery. The alternator output wasn't able to run the vehicle and charge the battery. Alternators are picky things, especially being in Canada (which I assume from the KM), the hot and cold cycles don't play nicely with the brushes and core. I'd have the alternator checked and replaced if needed.